Lighting device for gas burners



Oct. 8, 1935. D. J. SCHOENBERGER LIGHTING DEVICE FOR GAS BURNERS Filed Feb. 23, 1954 Patented Oct. 8,1935

UNITED STATES PATENT OFFICE 2,013,839 mon'rmo DEVICE Foa Gas BURNERS Daniel .I. Schoenberger, Cleveland, Ohio, assignor to The W. J. Schoenberger Company, Cleveland, Ohio, a corporation of Ohio A Application February 2:, 1934, Serial No. 112,676.

4 Claims.

Figure 1 is an enlarged cross sectional viewof the lighter showing one arrangement of the gas manifold;

Figure 2 is an enlarged cross sectional view of the lighter showing another arrangement of a gas manifold.

Figures 3 through 8 inclusive show the lighter disassembled, thus Figure 3 is a sectional view through the hood supporting nut; Figure 4 is a side view of the spring for holding the air controlling sleeve; Figure 5 is a sectional view of the air control sleeve; Figure 6 is a longitudinal sectional view through the lighter body, showing the working relationship of the valve and valve adlusting member; Figure '7 is a sectional view through the adapter nipple and Figure 8 is a side view of the plug employed for closing either the side or bottom adapter opening in the lighter body.

Figure 9 is a transverse sectional view taken on ;the line 3-9 Figure 6.

My improved lighting device or valve comprises a Bunsen type of pilot burner l2, the body portion I 3 of which is formed with a threaded opening M at its lower end, and a second threaded opening IS in one side thereof, each of which openings communicates with the cylindrical gas chamber |6. An externally threaded nipple I! when screwed at one end into either of the openings H or IE is adapted to be connected at its other end either to the top or side of a gas manifold. Where a centrally disposed manifold 4, is

employed such as disclosed in Figure 1, the manifoldwill be preferably provided with a threaded top opening I8 into which the outer end of the nipple is screwed, for supporting the body of the pilot burner or valve in upright position symmetrically with respect to the burners.

The threading and size of the nipple at both ends of the latter preferably corresponds in size and threading with that of openings l4 and i5 so that either end of the nipple will fit either of these openings. ,One of the openings M and I5 must of course be plugged and for this purpose I provide a screw cap or plug 20 adapted to be screwed into that opening which is not employed to receive the nipple. It will thus be seen that the lighter body is adapted for convenient connection either to the side or top of a manifold. A wrench engaging portion I9 is formed intermediate the ends of the nipple for an 5 obvious purpose.

My invention as heretofore stated is designed particularly for gas ranges and as shown in Figure 1 of the drawing the extension 2| of the body portion I3 is provided with a hood 23 having 10 openings adapted to receive tubes leading to the burners for conveying the flame thereto, all of which is well understood by those skilled in the art.

It will also be noted that in Figure 2, a modi- 1 fled form of manifold arrangement, the lighter body is supported by a pipe 25, the inner engof which screws into side opening IS. The outer end of the pipe 25, connects with the top of manifold 4', by means of an elbow coupling 26, 20 and thus provides for a free flow of gas from the main manifold to the chamber l6 of lighter body l3. Of course, it will be understood that the elbow may be dispensed with and pipe 25 connected directly with an opening (not shown) formed in 25 the side of manifold 4'.

The flow of gas through the cylindrical chamber It in body i3 01' the pilot burner l2, and thence through a, small opening 21 into a mixing chamber 28 in threaded extension 2|, is 30 regulated by a needle valve 29 having a rectangular body 30 terminating at one end in a needle .point 3|, and at the other end thereof having a a smooth face 32, preferably beveled at an angle of approximately 45. Rectangular body 30 is 35 guided in cylindrical chamber l8 for free sliding movement therein. An adjusting screw 33 threadedly mounted in a transverse opening 34 leading through the wall of body portion |3 to chamber I6 is formed with a cone shaped head 40 35 beveled at a 45 angle to provide snug contact with the beveled face 32. -A coil spring 36 surrounding needle point 3|, and bearing at opposite ends against the needle valve and the upper end of chamber l6, respectively, constantly 45 forces the beveled face 32 downwardly against I the beveled head thus insuring that the valve will not stick or otherwise become accidently closed. When adjusting screw 33 is screwed inwardly the needle valve 29 will be forced up- 50 wardly against the tension of spring 36, and the needle point 3| will partially close the opening 21, and when rotated in a reverse or'anti-clockwise direction the screw 33 will move outwardly and permit valve 29 to drop by gravity and under the influence of the spring 36, thus permitting a greater volume of gas to pass through opening 21. A lock nut 31 and asbestos washer 38 prevent gas from leaking through the opening 34. A. shoulder or lug 40 at the upper end of the beveled face 32 of the needle valve 23, serves as a stop to limit the outward movement of adjusting screw 33 and accidental withdrawal of the head 35 through the opening 34. Any suitable means such as a rotatable apertured collar 39 is employed to regulate the admission of air through openings 4| leading to chamber 28, and a nut 42 holds the hood and pilot burner securely together. 1

While it is essential that a pilot burner of the type herein disclosed, that is, one having an axially movable needle valve capable of fine actjustment, be employed in pilot burners, the use of such needle valves frequently presents many difficulties. In this connection centrally disposed main gas manifolds have not come into general use due to the dimculties encountered in centering the pilot burners of the needle valve type with respect to the several main burners of the stove, due to the fact that connection to the manifold must be made from theside, because the means for adjusting the needle valve is conventionally located at the lower end of the burner and consequently interferes with direct connec-v tion with the top of the manifold. This side connection is objectionable however, because of the danger of the adjusting means coming in contact with the dirt tray when the latter is withdrawn from the stove and thus disturbing the fine adjustment of the needle valve. Furthermore it is extremely diflicult to reach the adjusting means when so positioned. It will also be seen that a pilot lighter which can at will be connected either to a front or centrally disposed manifold has many advantages.

According to the present invention it is possible to overcome the foregoing objections and attain the desideratums referred to by providing the lighter body with means whereby the latter can be adapted for connection to variously arranged manifolds.

Having thus described my invention:

What I claim is:

1. A valve of the character described comprising a housing having a discharge opening therein, a gas supply below said discharge opening, a needle valve longitudinally movable in said housing and controlling said discharge opening, said valve having a beveled end and provided with a lateral lug at one end of the bevelled portion, and an operating member extending transversely into the housing and engaging the beveled end and said lug preventing the operating means from beiig withdrawn beyond the side of said bevelled en r 2. A valve of the character described comprising a. housing having a discharge opening at one end, a gas supply adjacent the opposite end of the housing, a needle' valve longitudinally movable in said housing and controlling said discharge opening, a spring normally holding the valve unseated, said valve having a beveled end and provided with a lateral lug at one end of the bevelled portion and an operating member extending transversely into the housing and engaging the beveled end of the valve, and said lug preventing the operating means from being withdrawn beyond the side of said bevelled end.

3. A valve of the character described compris ing an elongated housing having a discharge opening at one end, a gas supply adjacent the opposite end of the housing, a needle valve longitudinally movable in said housing and controlling said discharge opening, said valve having an enlarged end, a spring surrounding the valve between the enlarged end and the housing for normally holding the valve open, the end of the enlarged portion of the valve being beveled and said beveled end provided at one end with a lateral lug, and an operating member extending transversely into the housing and engaging the beveled end of the enlarged portion of the valve, and said lug preventing the operating means from being withdrawn beyond the side of said bevelled end.

4. In a valve of the character described comprising an elongated housing having a discharge opening at one end, said housing having two threaded openings therein, arranged at right angles, a plug closing one of saidihreaded openings and a'tubular member adapted to be connected to a gas supply in the other opening and s arranged that said tubular member and plug can be transposed, a needle valve longitudinally movable in said housing and controlling said discharge opening, said valve having an enlarged end, a spring surrounding the valve between the enlarged end and the housing for normally holding the valve open, the end of the enlarged portion of the valve being beveled and said beveled portion provided at one end with a lateral lug, and an operating member extending transversely into the housing and engaging the beveled end of the enlarged portion of the valve, and said lug preventing the operating means from being withdrawn beyond the side of said beveled end.

DANIEL J. SCHOENBERGER. 

